Sectional gas-burner.



No. 741,130. PATBNTED OUT. 13, 1590s I E; A]: EARL SEGTIQNAL GAS;BURNER.

ABP'LIOATION FILED; DEN 1. 1902.

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SECTIONAL GAS-- BURNER.

SPECIFICATION forming part of Letters Patent No. 741,130, dated October13, 1903.

Application filed December 1, 1902. Serial No. 138.315. (No model.) 7

To all whom it may concern.-

Be it known that I, EDWIN A. HALL, of Hydepark, in the county ofNorfolkand State of Massachusetts, have invented certain new and usefulImprovements in Sectional Gas- Burners, of which the following is aspecification.

This invention relates to means for supplying an inflammable mixture,such as gas and air, to ranges or heaters in general, this inventionhaving particular reference to the structure of the burner itselfregardless of the means to be used in connection therewith for utilizingthe heat generated.

The obj ect of the invention is to provide an improved burnerconstructed in sections which may be independently controlled, therebyenabling the quantity of heat delivered to the range or its equivalentto be regulated as may be desired and also preventing the detonationswhich result from shutting off the supply of gas to a single largeburner.

Further objects of the invention are to provide improvements in thecouplings between the supply-pipes and the sections and to provide thesections of the burner with tops so formed as to prevent undue heating,and thus keep the interior of the conduit within the section relativelycool.

To these ends the invention consists in the construction and arrangementof parts substantially as hereinafter described and claimed.

Of the accompanying drawings, Figure 1 represents a plan view of aburner consisting of a plurality of sections, said figure illustratingthe sections as constructed according to one embodiment of my invention.Fig. 2 represents an edge view of the burner shown in Fig. 1 and showingalso the pipe connections for supplying the inflammable mixture to thesections. Fig. 3 represents a detail section on line 3 3 of Fig. 1. Fig.a represents a-detail section enlarged of one of the packed couplings.

The same reference characters indicate the same parts in all thefigures.

As shown in Figs. 1 and 2, the burner is represented as being formed ofthree sections a, b,and 0, arranged in juxtaposition and composed ofhollow pipes or castings having perforated tops and formed with branchesthe spaces between which are substantially equal. The several sectionswhen arranged in their proper relative positions form a complete burnerof relatively large area comprising two side members and an intermediatemember each having branches, the spaces between all of the branchesbeing substantially equal. The burner illustrated is in the form of acircle, the two outer sections including also chords of the circle andshort radii thereof, while the central section includes a diametricalbar terminating in bars in the form of arcs of the circle andintermediate substantially parallel bars at right angles to the centraldiametrical bar. As above stated, the spaces between these bars orbranches are substantially equal, so as to provide an equal distributionof heat. Each section is independently supplied with inflammablemixture, and for this purpose each said. section is provided with a hubor nipple, as represented at a, b, and 0, respectively. Gonnectingsupply-pipes are represented at a 5 and 0 said connecting-pipes havingpacked couplings d interposed between them and the nipples of thedistributing-sections. Each of said connecting-pieces is provided with acontrolling valve or cock, as represented at a 19 and 0 the ends of thepipe beyond said'cocks being connected with a supplymain e, havingasuitable valve or cook. By means of the cooks a 19 and c the supply tothe independent distributing-sections of the burner may be varied orcontrolled according to the desires of the user, and by means of saidcooks the supply may be shut ofi successively, so as to prevent adetonation, which commonly follows the shutting off of the supply of gasto a large or spread-out distributing-burner.

The sectional gasburner herein described is intended to be used inconnection with a suitable air and gas mixing device, (not shown,) so asto obtain the effect of the Bunsen burner at the perforations of thesections. To prevent the combustion from extending back into thesupply-pipes, I provide the packed couplings d, above referred to. Thesepacked couplings, as shown in Fig. 4., contain aplurality of layers ofdisks of fine Wire-gauze or its equivalent. The lower portion of eachcoupling is provided with a shoulder d, and

the emission of the inflammable mixture are represented at f. Preferablythe bars of the burner are substantially rectangular in crosssection,but at the center of their tops are made thicker, the perforationsleading through this thickened portion. Each side of theperforationsfthe bars are beveled or inclined,asindicatedatg.Thisstructureserves to keep the top portion of the burner relativelycool, inasmuch as the quantity of metal is reduced, and the area ofsurface exposed to contact with the air is increased by thus bevelingthe bars. I prefer to form grooves or recesses h in the reduced topsurfaces of the bars between the perforations fto further assist inkeeping the top portion relatively cool.

I do not limit myself to the form of the sections here shown, as thesame may be variously modified to suit difierent requirements.

I claim- 1. A sectional. gas-burner comprising two side members orsections and an intermediate member or section, the several members orsections being provided with means for independently controlling thesupply of fuel thereto, and all having branches, the spaces between thebranches being substantially equal in area.

2. A sectional gas-burner comprising three members or sections havingthe outline form of a circle, the two outer sections including alsochords of the circle and short radii thereof, the central sectionincluding a diametrical bar terminating in bars in the form of arcs of acircle and intermediate substantially parallel bars or branches at rightangles to the central diametrical bar, the spaces between the bars orbranches being substantially equal to provide an equal distribution ofheat.

3. The combination with a burner-section, of a pipe for supplyinginflammable mixture thereto, and a packed coupling between said pipe andthe burner-section said packed coupling containingaplurality ofwire-gauze disks and spacing-rings interposed between said disks.

In testimony whereof I have affixed my signature in presence of twowitnesses.

EDWIN A. HALL.

Witnesses:

O. F. BROWN, E. BATCHELDER.

